This is my first post - I am homeschooling my soon to be 9 yr old and would like to use a simulator to build a layout. We purchased Trainz Sim 12 and would like to know if that would be the best one. I am also going to be purchasing one for myself so that we can build together. I know Trainz Sim 12 has multiplayer, but if we are going to be using this for the long haul, I want to make sure we get the best one. I am not as computer literate as I used to be, but I think I can figure things out pretty good! 
Can anyone give me some thoughts on this? Note that we both will be using PC's. Thank you so much!!

Can anyone give me some thoughts on this? Note that we both will be using PC's. Thank you so much!!